Photo from University of Cincinatti, Clermont College, Biology
Photo from University of Tennesee Plant Pathology
Photo by Peggy Sellers, Purdue University
Photo from Department of Plant Pathology, Washington State University
Photo by Paul A. Mistretta, USDA Forest Service, Bugwood.org
Photo by Chris Evans, River to River CWMA, Bugwood.org
Photo by David J. Moorhead, University of Georgia, Bugwood.org
Septoria Leaf Spot on Cornus florida
Photo from Division of Plant Industry Archive, Florida Department of Agriculture and Consumer Services, Bugwood.org
Photo from Online Guide to Plant Disease Control, Oregon State University